3 years ago

Three less than a certain number is 9. Find the number.

Mathematics

2 answers:

balu736 [363]3 years ago

8 0

Answer:

12 Im assuming.

lilavasa [31]3 years ago

7 0

12 is the correct answer

You might be interested in

G(x)=9x-11 find g(8)

sineoko [7]

Answer:

Step-by-step explanation:

8(9x-11)

72x-88

6 0

4 years ago

In a class of 21 students, there are 3 boys for every 4 girls. How many girls in all are in the

Eduardwww [97]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

8) The height of a building h varies directly as the length and inversely as the width, if h = 25m when l = 10m and w = 5m, find

shtirl [24]

Let h,l, and w represent the height, length, and width of the building respectively

Then

$\begin{gathered} h\text{ = }\frac{kl}{w} \\ \text{where k is the constant of proportionality} \end{gathered}$ $\begin{gathered} \Rightarrow k=\frac{hw}{l} \\ \Rightarrow k=\frac{25\times5}{10}=12.5 \end{gathered}$ $\Rightarrow h=\frac{12.5l}{w}$

The new value of h = 50m, but l remains the same.

That is l = 10m

Therefore

$\begin{gathered} \frac{50}{1}=\frac{12.5\times10}{w} \\ \Rightarrow\frac{50}{1}=\frac{125}{w} \\ \text{Cross multiplying, we have} \\ 50w\text{ = 125} \\ \Rightarrow\text{ w=}\frac{125}{50}=2.5 \end{gathered}$

Hence, the width is 2.5m

8 0

1 year ago

HELP HELP HELP HELP PLS

densk [106]

Answer:

D. 14 Please mark as brainliest!

3 0

3 years ago

Read 2 more answers

1.3485 divided by 0.31 please

levacccp [35]